
268
JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS23x, 34x, 43x
Step motor controllers (SMCxx)
Step Motor Controller SMC75 is a mini-step driver with fixed 1600 pulses/rev., which
has been designed for driving step motors with phase currents of up to 3 Amp/phase
(RMS).
The Controller SMC75 is available in 2 different versions for various applications. It is
built into the QuickStep Integrated Step Motors, but for OEM and low-cost applications
it can be delivered as a PCB or in its own housing with M12 connectors. For easy mount-
ing and service, the version with M12 connectors is recommended. A version with cable
glands can be used for high volume and low cost applications.
Other combinations and features are also possible for OEM use. See “Connector over-
view for the MIS23x” on page 33. for further information.
The “box” version which is built into a black aluminium casing provides a very robust
construction that is insensitive to mechanical vibration and electrical noise.
The advantage of using a ministep driver instead of a conventional full-step or half-step
driver is that mechanical resonance problems are significantly minimised. Resonance
most often occurs at slow motor speeds and results either in loss of motor torque or the
appearance of significant harmonics. The principle of the ministep technique is to drive
the motor using a sinusoidal current in the interval between 2 physical full steps. This re-
duces the step velocity between each step and thus damps any resonance significantly.
Both 2-phase and 4-phase step motors can be connected to the Controller, which utilises
the “Bipolar Chopper” principle of operation, thus giving optimum motor performance.
Order no.
PCB BOX
CAN-
open
IO
RS485
M12
Cable
Glands
SMC75A1
X
8
1
SMC75A1AC
X
X
8
1
SMC75A1M3
X
4
2
X
SMC75A1M5
X
8
1
X
SMC75A1M6
X
X
8
1
X
SMC75A1W0
X
8
1
X
50
-50
0
150
-150
100
-100
2
3
1
4
Position
(Full steps)
Position
(Full steps)
Ministep
Full step
Current (%)
Comparison between ministep and full step
Resonance during full step operation
6
5
2
3
1
0
4
Time
TT2158GB
Overshoot
Summary of Contents for MIS23 Series
Page 6: ...6 JVL Industri Elektronik A S User Manual Integrated Stepper Motors MIS23x 34x 43x ...
Page 29: ...JVL Industri Elektronik A S User Manual Integrated Stepper Motors MIS23x 34x 43x 27 ...
Page 56: ...54 JVL Industri Elektronik A S User Manual Integrated Stepper Motors MIS23x 34x 43x ...
Page 116: ...114 JVL Industri Elektronik A S User Manual Integrated Stepper Motors MIS23x 34x 43x ...
Page 188: ...186 JVL Industri Elektronik A S User Manual Integrated Stepper Motors MIS23x 34x 43x ...
Page 260: ...258 JVL Industri Elektronik A S User Manual Integrated Stepper Motors MIS23x 34x 43x ...
Page 335: ...JVL Industri Elektronik A S User Manual Integrated Stepper Motors MIS23x 34x 43x 333 ...
Page 341: ...JVL Industri Elektronik A S User Manual Integrated Stepper Motors MIS23x 34x 43x 339 ...